107728619 has 4 divisors (see below), whose sum is σ = 112412496. Its totient is φ = 103044744.

The previous prime is 107728603. The next prime is 107728667. The reversal of 107728619 is 916827701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 916827701 = 137 ⋅6692173.

It is a cyclic number.

It is not a de Polignac number, because 107728619 - 2⁴ = 107728603 is a prime.

It is a super-2 number, since 2×107728619² = 23210910703294322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107728669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2341904 + ... + 2341949.

It is an arithmetic number, because the mean of its divisors is an integer number (28103124).

Almost surely, 2^107728619 is an apocalyptic number.

107728619 is a deficient number, since it is larger than the sum of its proper divisors (4683877).

107728619 is an equidigital number, since it uses as much as digits as its factorization.

107728619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683876.

The product of its (nonzero) digits is 42336, while the sum is 41.

The square root of 107728619 is about 10379.2398083867. The cubic root of 107728619 is about 475.8211009444.

It can be divided in two parts, 10772 and 8619, that added together give a palindrome (19391).

The spelling of 107728619 in words is "one hundred seven million, seven hundred twenty-eight thousand, six hundred nineteen".